CN114809646A - Formwork support system for concrete structure and method for supporting formwork - Google Patents

Abstract

The present disclosure relates to a formwork support system of a concrete structure and a method for supporting a formwork, the formwork support system of the concrete structure comprises a plurality of cushion blocks, framework steel bars and formworks, the plurality of formworks are sequentially connected end to end and are arranged in the circumferential direction of a structural steel bar body in an enclosing manner; the structure reinforcing bar body has relative first side and second side, the one end of each cushion and the inner wall laminating of the template that corresponds, each the other end of cushion all is provided with the connecting piece, and the other end of each cushion has seted up the locating hole, the connecting piece is worn to establish in the locating hole with fixed with the cushion that corresponds, thereby the stability of being connected of connecting piece and cushion has been guaranteed, and the part that shows outside the locating hole of connecting piece welds with the structure reinforcing bar body, thereby realized the reliable fixed of cushion and the structure reinforcing bar body, and then improved the joint strength and the stability of cushion and the structure reinforcing bar body, the drop or the off normal of cushion has been avoided, the accuracy of protective layer thickness has been guaranteed.

Description

Formwork support system for concrete structure and method for supporting formwork

Technical Field

The disclosure relates to the technical field of building construction, in particular to a formwork supporting system of a concrete structure and a formwork supporting method.

Background

In a reinforced concrete structure, the arrangement and control of a steel bar protection layer are particularly important, and the steel bar protection layer is mainly used for protecting structural steel bars from being corroded, ensuring the structural stress of the structural steel bars and the like.

However, in the prior art, the fixing effect between the cushion block for controlling the thickness of the protective layer and the structural steel bar is not good, so that the cushion block is easy to deviate and fall off after being stressed, and the accuracy of the thickness of the protective layer cannot be ensured.

Disclosure of Invention

To solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a formwork support system of a concrete structure and a method of performing formwork support.

In a first aspect, the present disclosure provides a formwork support system of a concrete structure, comprising a plurality of cushion blocks, framework steel bars and formworks, wherein the plurality of formworks are sequentially connected end to end and are arranged around the circumferential direction of a structural steel bar body;

the structural steel bar body is provided with a first side and a second side which are opposite, a plurality of framework steel bars are sequentially arranged between the corresponding formworks on the first side and the second side at intervals, and the end surfaces of the framework steel bars are respectively abutted against the inner walls of the corresponding formworks to form inner supports of the formworks; the formwork support system of the concrete structure further comprises an outer support for supporting the outer wall of each formwork;

the first side and the second side are respectively provided with a plurality of cushion blocks which are arranged at intervals along the extension direction of the corresponding template, and the number of the cushion blocks on the first side is equal to that on the second side; one end of each cushion block is attached to the inner wall of the corresponding template, a connecting piece is arranged at the other end of each cushion block, a positioning hole extending away from the corresponding template is formed in the other end of each cushion block, the connecting piece penetrates through the positioning hole to be fixed with the cushion block, part of the connecting piece is exposed out of the corresponding positioning hole, the part of the connecting piece exposed out of the positioning hole is welded with the structural steel bar body, and the part of the cushion block exposed between the inner wall of the corresponding template and the outer wall of the corresponding structural steel bar body forms a protective layer.

Optionally, the cushion blocks on the first side correspond to the cushion blocks on the second side one by one, each framework steel bar is connected between two corresponding cushion blocks, and two ends of each framework steel bar are respectively connected with the connecting pieces on the corresponding cushion blocks, so that each cushion block and the corresponding framework steel bar jointly form the inner support.

Optionally, each framework steel bar is connected with the corresponding connecting piece in a welding manner.

Optionally, the formwork support system of the concrete structure further includes a sleeve for connecting each of the framework steel bars and the corresponding connecting member;

first internal threads are arranged on the inner wall of the sleeve, and second external threads which can be matched with the first internal threads are arranged on the outer walls of the framework steel bars and the connecting pieces.

Optionally, the connecting member is a steel bar.

Optionally, the cushion block is made of concrete.

Optionally, the formwork support system of the concrete structure further includes a plurality of tie rods, each formwork is provided with a plurality of through holes through which the tie rods can pass, so that one end of each tie rod sequentially passes through the through hole in the formwork corresponding to the first side, the gap of the structural reinforcement body, and the through hole in the formwork corresponding to the second side, and two ends of each tie rod are respectively exposed outside the corresponding formwork and detachably connected to the corresponding formwork to form the outer support;

and a protective cylinder is sleeved on the part of each pull rod positioned between the templates.

Optionally, the formwork support system of the concrete structure further includes a fastener, an inner wall of the fastener is provided with a second internal thread, and an outer wall of each tie rod is provided with a second external thread which can be matched with the second internal thread;

when the fasteners penetrate through the pull rods and one ends of the fasteners are attached to the outer walls of the templates, the pull rods are detachably connected with the corresponding templates.

Optionally, the protection cylinder is a PVC pipe.

In a second aspect, the present disclosure provides a method of formwork support using a formwork support system of a concrete structure as described above, the method comprising:

a plurality of cushion blocks are arranged at intervals in the circumferential direction of the structural steel bar body, and connecting pieces on the cushion blocks are welded with the structural steel bar body; the connecting piece penetrates through a positioning hole in the cushion block to be fixed with the cushion block;

a plurality of framework steel bars are arranged at preset positions of the structural steel bar body at intervals;

installing a plurality of templates in the circumferential direction of the structural reinforcement body, enabling the end face of each framework reinforcement to be abutted against the corresponding inner wall of the template to form the inner support, and enabling one end of the cushion block to be attached to the corresponding inner wall of the template;

and the outer support used for supporting the outer wall of the template is arranged on the outer wall of the template.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides a concrete structure's template braced system and method of carrying out template support, through setting up a plurality of cushions and a plurality of end to end connection in proper order and enclose and establish at the ascending template of structural reinforcement body circumference, wherein, the structural reinforcement body has relative first side and second side, through all set up a plurality of cushions that set up along the extending direction interval of corresponding template on first side and second side, and make the one end of each cushion and the inner wall laminating of the template that corresponds, the other end orientation of each cushion extends towards the direction of keeping away from corresponding template. The other end of each cushion block is provided with a connecting piece, the other end of each cushion block is provided with a positioning hole extending towards the direction far away from the corresponding template, and the connecting piece is arranged in the positioning hole in a penetrating mode to be fixed with the cushion block. Meanwhile, part of the connecting piece is exposed outside the corresponding positioning hole, the part of the connecting piece exposed outside the positioning hole is welded with the structural steel bar body, and the part of the cushion block exposed between the inner wall of the corresponding template and the outer wall of the corresponding structural steel bar body forms a protective layer. Through making connecting piece and structural reinforcement body weld, thereby realized the reliable fixed of cushion and structural reinforcement body, improved joint strength and stability between cushion and the structural reinforcement body to a certain extent, so that the cushion can remain the effective connection with the structural reinforcement body all the time, promptly, avoided the cushion atress and come off or the off normal from the structural reinforcement body, and then guaranteed the accuracy of protective layer thickness, improved the accuracy of whole reinforced concrete structure size after concrete placement to a certain extent.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Figure 1 is a schematic view of a portion of a formwork support system for a concrete structure according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view illustrating a spacer and a connector in a formwork support system for a concrete structure according to an embodiment of the present disclosure;

fig. 3 is a schematic view illustrating welding of a connector and a framework steel bar in a formwork support system of a concrete structure according to an embodiment of the present disclosure;

fig. 4 is a schematic view illustrating a connection member and a framework steel bar of a formwork support system of a concrete structure connected by a sleeve according to an embodiment of the present disclosure.

Wherein, 1, a cushion block; 101. positioning holes; 2. framework steel bars; 3. a structural reinforcement body; 31. structural steel bars; 32. a first side; 33. a second side; 4. a template; 5. an inner support; 6. an outer support; 7. a connecting member; 71. welding a seam; 8. a pull rod; 9. a through hole; 10. a sleeve; 11. reinforcing ribs; 12. a fastener; 13. and (7) a gasket.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Referring to fig. 1 to 4, the present embodiment provides a formwork support system for a concrete structure, which specifically includes a plurality of spacers 1, framework steel bars 2 and formworks 4, wherein the plurality of formworks 4 are sequentially connected end to end and are arranged around the periphery of a structural steel bar body 3. Wherein the template 4 is specifically a steel template 4. Referring to fig. 1, the structural reinforcement body 3 specifically includes a plurality of structural reinforcements 31 alternately connected together in sequence.

Referring to fig. 1, the structural reinforcement body 3 has a first side 32 and a second side 33 opposite to each other, a plurality of framework reinforcements 2 are sequentially disposed between the corresponding formworks 4 on the first side 32 and the second side 33 at intervals, and end surfaces of the framework reinforcements 2 are respectively abutted against inner walls of the corresponding formworks 4 to form the inner supports 5 of the formworks 4. Meanwhile, the formwork support system for a concrete structure further includes an outer support 6 supporting an outer wall of each formwork 4.

The first side 32 and the second side 33 are respectively provided with a plurality of cushion blocks 1 which are arranged at intervals along the extending direction of the corresponding template 4, and the number of the cushion blocks 1 on the first side 32 and the second side 33 is equal; one end of each cushion block 1 is attached to the inner wall of the corresponding template 4, the other end of each cushion block 1 is provided with a connecting piece 7, the other end of each cushion block 1 is provided with a positioning hole 101 which extends towards the direction far away from the corresponding template 4, the connecting piece 7 is arranged in the positioning hole 101 in a penetrating manner to be fixed with the cushion block 1, part of the connecting piece 7 is exposed out of the corresponding positioning hole 101, the part of the connecting piece 7 exposed out of the positioning hole 101 is welded with the structural steel bar body 3, and the part of each cushion block 1 exposed out of the inner wall of the corresponding template 4 and the outer wall of the corresponding structural steel bar body 3 forms a protective layer. The extending direction of the template 4 may specifically refer to the direction of the double-headed arrow Y-Y shown in fig. 1.

Referring to fig. 2, through setting up locating hole 101 on cushion 1, when the in-service use, only need wear to establish in locating hole 101 with the one end of connecting piece 7, can realize fixing connecting piece 7, moreover, the steam generator is simple in structure, and convenient to use, and the fixed effectual between connecting piece 7 and the cushion 1 that corresponds, that is, can not break away from the connection between connecting piece 7 and the cushion 1 that corresponds, or there is relative displacement, thereby guaranteed the stability of being connected between each cushion 1 and the structural steel bar body 3 to a certain extent, and then guaranteed the accuracy of protective layer thickness.

Meanwhile, the connecting piece 7 is welded with the structural steel bar body 3, so that the connection stability of the connecting piece 7 and the structural steel bar body 3 is improved, the connection strength and the connection stability between each cushion block 1 and the structural steel bar body 3 are improved to a certain extent, and the cushion blocks 1 can be always effectively connected with the structural steel bar body 3. Namely, the cushion block 1 is prevented from falling off or deviating from the structural reinforcement body 3 due to stress, the accuracy of the thickness of the protective layer is ensured, and the accuracy of the size of the whole reinforced concrete structure after concrete pouring is improved to a certain extent.

It should be noted that, referring to fig. 1, the first side 32 and the second side 33 are described herein with respect to the width direction of the structural reinforcing body 3 (i.e., the direction of the double-headed arrow X-X shown in fig. 1). It can be understood that the structural reinforcement body 3 also has a first side 32 and a second side 33 opposite to each other in the length direction (i.e., the direction of the double-headed arrow Y-Y shown in fig. 1), and the arrangement manner of the formwork 4, the spacer 1, the connecting member 7, the framework reinforcement 2, and the like on the first side 32 and the second side 33 corresponding to the length direction is the same as the arrangement manner in the width direction, which is not described herein again.

Illustratively, when the concrete structure is constructed, the concrete construction steps are as follows:

the concrete position of a steel bar in a concrete structure to be constructed is positioned through precision measurement, and a positioning contour line is marked on a structural bottom plate. The marking of the positioning contour line is usually performed by methods of snapping a line on a structural bottom plate, adding a hanging line on a positioning control point and the like.

And step two, obtaining the outer contour line of the concrete structure by using the measured and positioned positioning contour line, checking the binding size and verticality of the steel bars, and finally forming the structural steel bar body 3. Specifically, the outer contour line can be obtained by a plumb line method (i.e., adjusting the position of the top vertical line so that the tip of the bottom plumb coincides with the position contour line, which is the outer contour line). In this process, the outer contour dimension of the structural steel bar body 3 needs to be strictly controlled, and the thickness of the protective layer of the structural steel bar body 3 (wherein, the thickness of the concrete protective layer in the engineering example can be 30cm) is ensured to meet the specification requirement. The thickness of the specific protective layer can be flexibly adjusted according to the requirements and the size of the actual concrete structure.

Thirdly, firstly, installing a cushion block 1 on the structural reinforcement body 3 by utilizing the measured and positioned outer contour line of the concrete structure, and welding a connecting piece 7 on the cushion block 1 and the structural reinforcement body 3 together; the connecting piece 7 penetrates through a positioning hole 101 in the cushion block 1 to be fixed with the cushion block 1; and a plurality of framework steel bars 2 are arranged at preset positions on the structural steel bar body 3 at intervals. In specific implementation, the checking can be performed by adopting a plumb line method so that the outer edge of the cushion block 1 conforms to the size of an actual concrete structure. Wherein, the framework steel bar 2 can be fixed on the structural steel bar body 3 by welding, bolting, riveting, binding and other modes. Meanwhile, when installing the framework steel bars 2, it is necessary to ensure that the extending direction of each framework steel bar 2 is perpendicular to the surface of the template 4 to be installed.

And step four, installing a plurality of templates 4 in the circumferential direction of the structural reinforcement body 3. During installation, the inner wall of the template 4 needs to be tightly attached to the end faces of the framework steel bars 2 to form the inner support 5 of the template 4, and meanwhile, the template 4 is adjusted to enable the seam of the template 4 to meet the standard requirement. Because the cushion block 1 is accurately positioned and firmly fixed, the inner wall of the installed template 4 is also attached to one end of the cushion block 1, namely, the cushion block 1 can be equivalent to the inner support 5 of the template 4 to a certain extent, so that the accurate installation position of the template 4 is ensured.

And step five, arranging an outer support 6 for supporting the outer wall of the template 4 on the outer wall of the template 4. The strength, rigidity and stability of the installation of the template 4 are ensured by combining the arrangement of the inner support 5.

And sixthly, checking the installation size of the template 4 by using a measuring instrument to enable the template to meet the standard requirement. The sizes of all parts of the installed template 4, the connection strength of the outer support 6 and the template 4, the top end of the framework steel bar 2 and the close contact condition of the cushion block 1 and the template 4 are comprehensively checked.

And step seven, pouring concrete. At this time, a specially-assigned person must check the formwork 4 to prevent the deformation of the formwork 4 caused by the looseness of the outer support 6 due to the contact between the concrete vibrator and the formwork 4.

The concrete structure's that this embodiment provided template braced system, through setting up a plurality of cushions 1 and a plurality of end to end connection in proper order and enclose and establish at the ascending template 4 of structural reinforcement body 3 week, wherein, structural reinforcement body 3 has relative first side 32 and second side 33, through all set up a plurality of cushions 1 that set up along the extending direction interval that corresponds template 4 on first side 32 and second side 33, and make the one end of each cushion 1 and the laminating of the inner wall of the template 4 that corresponds, the other end orientation of each cushion 1 extends in the direction of keeping away from corresponding template 4. Because the other end of each cushion block 1 is provided with the connecting piece 7, and the other end of each cushion block 1 is provided with the locating hole 101 that extends towards the direction away from the corresponding template 4, the connecting piece 7 is arranged in the locating hole 101 in a penetrating manner to be fixed with the cushion block 1, that is to say, before the cushion block 1 is arranged on the structural steel bar body 3, firstly, each cushion block 1 and each connecting piece 7 are fixed in a one-to-one correspondence manner through the locating hole 101, so that the stability of connection between the connecting piece 7 and the corresponding cushion block 1 is ensured, and the cushion block 1 can be always reliably connected with the corresponding connecting piece 7 and cannot be separated from the corresponding connecting piece 7. Meanwhile, part of the connecting piece 7 is exposed out of the corresponding positioning hole 101, the part of the connecting piece 7 exposed out of the positioning hole 101 is welded with the structural reinforcement body 3, and the part of the cushion block 1 exposed between the inner wall of the corresponding template 4 and the outer wall of the corresponding structural reinforcement body 3 forms a protective layer. Through making connecting piece 7 and structural reinforcement body 3 weld, thereby realized cushion 1 and structural reinforcement body 3 reliable fixed, improved joint strength and stability between cushion 1 and structural reinforcement body 3 to a certain extent, so that cushion 1 can remain the effective connection with structural reinforcement body 3 throughout, namely, avoided cushion 1 atress and come off or off normal from structural reinforcement body 3, and then guaranteed the accuracy of protective layer thickness, improved the accuracy of whole reinforced concrete structure size after concrete placement to a certain extent.

Referring to fig. 1, the blocks 1 on the first side 32 are in one-to-one correspondence with the blocks 1 on the second side 33. When the thickness of the concrete structure is small (namely, the thickness of the concrete structure of an engineering example is 120cm), each framework steel bar 2 can be connected between two corresponding cushion blocks 1, and two ends of each framework steel bar 2 are respectively connected with the connecting pieces 7 on the corresponding cushion blocks 1, so that each cushion block 1 and the corresponding framework steel bar 2 form an inner support 5 together.

That is, when installing the spacer blocks 1 and the framework steel bars 2, first, each framework steel bar 2 is connected with the connecting piece 7 on the two corresponding spacer blocks 1, that is, each framework steel bar 2 is connected between the two corresponding spacer blocks 1 through the whole structural steel bar body 3; and then the connecting pieces 7 on the cushion blocks 1 are welded with the structural steel bar bodies 3, and finally the inner supports 5 of the template 4 are formed together through the cushion blocks 1 and the framework steel bars 2, so that the strength of the inner supports 5 is improved, and the thickness of a protective layer is further ensured.

The skeleton reinforcing steel bar 2 does not directly contact with the template 4, so that when the template 4 is removed after concrete pouring is finished, one end, close to the template 4, of the skeleton reinforcing steel bar 2 cannot be exposed outside the concrete structure, the thickness accuracy of the protective layer and the stability of the support 5 in the template 4 are guaranteed, meanwhile, the skeleton reinforcing steel bar 2 is well protected, and the skeleton reinforcing steel bar 2 cannot be corroded due to exposure. Simple structure, convenient implementation, and 5 effectual in the interior support of template 4 to protect skeleton reinforcing bar 2.

In some embodiments, when the concrete structure has a large thickness, two framework steel bars 2 may be connected between two corresponding cushion blocks 1, that is, two corresponding cushion blocks 1 are respectively connected to one framework steel bar 2, one end of each framework steel bar 2 is connected to a connecting member 7 on the corresponding cushion block 1, and the other end of each framework steel bar 2 is fixed to the structural steel bar body 3 by welding, bolting, riveting, binding or the like.

In some embodiments, each framework reinforcement 2 is connected to the corresponding connecting member 7 by welding. Referring to fig. 3, make skeleton reinforcing bar 2 connect through the welded mode to formed welded joint 71, so set up, conveniently be connected skeleton reinforcing bar 2 and connecting piece 7, and connection stability is good, and intensity is high, and has improved the support effect of interior support 5 to a certain extent.

In other embodiments, the formwork support system for concrete structures may further comprise a sleeve 10 for connecting each framework steel bar 2 with the corresponding connecting member 7. Wherein, set up first internal thread on the inner wall of sleeve 10, all set up the first external screw thread that can match with first internal thread on the outer wall of each skeleton reinforcing bar 2 and each connecting piece 7.

During the specific use, wear to establish inside sleeve 10 through respectively each skeleton reinforcing bar 2 and each connecting piece 7 to make first internal thread on the sleeve 10 and the first external screw thread accordant connection on each skeleton reinforcing bar 2 and the connecting piece 7, can realize connecting piece 7 and skeleton reinforcing bar 2's connection fixed, simple structure has further improved joint strength and stability between connecting piece 7 and the skeleton reinforcing bar 2.

Because the reinforcing steel bars and the concrete have approximately the same linear expansion coefficient, and the reinforcing steel bars and the concrete have good cohesive force. Therefore, the connecting piece 7 can be a steel bar, so the connecting piece 7 has high strength and good reliability, the integrity between the connecting piece 7 and the structural steel bar body 3 is good, and the adhesive force between the concrete to be poured and the connecting piece 7 is high.

Of course, the connecting member 7 may be made of other materials such as iron and alloy, which have high hardness and high strength and can be welded to the structural reinforcement body 3.

Wherein, cushion 1 specifically is the concrete material, and the concrete strength of cushion 1 is not less than C40 (be 40 megapascals promptly), so set up, when having guaranteed cushion 1 self strength, also can combine as an organic whole with cushion 1 after making whole structure body reinforcing bar concreting, improved concrete structure's wholeness.

Of course, the cushion block 1 may be made of plastic, mortar, or the like.

In particular, the formwork support system for a concrete structure further comprises a plurality of tie rods 8. Each template 4 is provided with a plurality of through holes 9 for the pull rods 8 to pass through, so that one end of each pull rod 8 sequentially passes through the through holes 9 on the template 4 corresponding to the first side 32, the gaps of the structural reinforcement bodies 3 and the through holes 9 on the template 4 corresponding to the second side 33, and the two ends of each pull rod 8 are respectively exposed outside the corresponding template 4 and detachably connected with the corresponding template 4 to form the outer support 6. Meanwhile, the part of each pull rod 8 between the templates 4 is also sleeved with a protective cylinder.

Illustratively, after the formworks 4 are installed along the circumferential direction of the structural reinforcement body 3, the tie rods 8 sequentially pass through the through holes 9 of the formworks 4 corresponding to the first side 32, the gaps of the structural reinforcement body 3 and the through holes 9 of the formworks 4 corresponding to the second side 33, and the part of each tie rod 8 exposed outside the corresponding formwork 4 is detachably connected with the formwork 4 to form the outer support 6 of the formwork 4. The outer support 6 has simple structure and convenient use, and ensures the installation strength, rigidity and stability of each template 4 on the basis of the inner support 5.

In some embodiments, the formwork support system for a concrete structure further comprises a fastening member 12, wherein the inner wall of the fastening member 12 is provided with a second internal thread, and the outer wall of each tie rod 8 is provided with a second external thread which can be matched with the second internal thread; when the fasteners 12 are arranged on the pull rods 8 in a penetrating way and one end of each fastener 12 is attached to the outer wall of the template 4, each pull rod 8 is detachably connected with the corresponding template 4.

During concrete implementation, through the second internal thread on the fastener 12 and the matching of the second external thread on the pull rod, realize pull rod 8 and template 4's detachable connection, set up like this, make things convenient for pull rod 8 and template 4's dismouting, and pull rod 8 and template 4's fixed effectual, joint strength is high to template 4's stability has been guaranteed, and then the accuracy of protective layer thickness has been guaranteed to a certain extent.

Wherein, the pull rod 8 can be a finish rolling screw-thread steel pull rod. Referring to fig. 1, when the pull rod 8 is detachably connected to the formwork 4, a gasket 13 may be first sleeved on one end of the pull rod 8 close to the outer wall of the formwork 4, and then the pull rod 8 is fixed to the formwork 4 by fasteners 12 on the outer side of the gasket 13, so as to realize the outer support 6 for the formwork 4. So set up, simple structure, convenient implementation, and it is effectual to template 4's outer support 6, further guaranteed the rigidity and the stability of template 4 installation. The spacer 13 may be a steel spacer.

Further, in order to prevent the pull rods 8 from loosening and the like, a plurality of fasteners 12 can be adopted at the two ends of each pull rod 8 for stiffening so as to enhance the connection strength of the pull rods 8 and the steel plates and ensure the effect of the outer support 6 of the template 4 and the accuracy of the thickness of the protective layer. Referring to fig. 1, two fasteners 12 are used at each end of each tie rod 8 in this embodiment. Specifically, the fastener 12 may be a nut, a nut-like member, or the like.

Wherein, the through holes 9 on the template 4 are round, and each through hole 9 is usually 3-5mm larger than the diameter of the pull rod 8, thereby facilitating the pull rod 8 to pass through the through holes 9. Meanwhile, as shown in fig. 1, reinforcing ribs 11 and the like are generally provided at positions corresponding to the through holes 9 of the form 4 to prevent the form 4 from being deformed when the tie bars 8 are fastened.

Specifically, the number of the tie bars 8 on the formwork 4 in unit area, the thickness of the gaskets 13 and the like are obtained through structure calculation according to the height of the concrete structure to be poured, the diameter of the tie bars 8, the structure of the formwork 4 and other parameters, so that the tension of the tie bars 8 is greater than the internal pressure of the newly poured concrete in the formwork 4 in the concrete pouring process, and quality problems such as formwork expansion and formwork running of the formwork 4 are prevented.

Of course, the pull rod 8 may be a common steel rod, and the pull rod 8 and the outer wall of the formwork 4 may be connected and fixed in a detachable manner such as clamping. Namely, two ends of the pull rod 8 are respectively provided with a clamping head, and a buckle which can be matched and clamped with the clamping head is arranged at the position corresponding to the through hole 9 on the outer wall of the template 4. The connection between the pull rod 8 and the template 4 is realized through the matching of the buckle and the clamping head.

Of course, in some embodiments, the form 4 may also be used as an outer support 6 for the form 4 by fixing the form 4 to a high strength structure such as a scaffold, existing building, or the like, located outside the form 4.

In specific implementation, after the template 4 is installed and the outer support 6 is arranged on the outer wall of the template 4, the installation size of the template 4 needs to be checked by using a measuring instrument so that the template 4 meets the standard requirement. Specifically, it is necessary to inspect the dimensions of the portions after the form 4 is installed, the fastening degree of the fastener 12, the top end of the frame bar 2, the close contact between the spacer 1 and the form 4, and the like.

After the concrete is checked to be correct, concrete can be poured, at the moment, a specially-assigned person needs to check the formwork 4 again, and the phenomenon that the formwork 4 deforms due to the fact that the pull rod 8, the fastening piece 12 and the like are loosened due to the fact that the concrete vibrating rod is in contact with the formwork 4 is avoided, and the size and the effect of concrete pouring are guaranteed.

Meanwhile, the protection cylinders are sleeved on the parts, located between the templates 4, of the pull rods 8 to well protect the pull rods 8 between the templates 4, so that in the concrete pouring and vibrating processes, concrete cannot be adhered to the pull rods 8 between the templates 4, and when the templates 4 are conveniently dismounted, the pull rods 8 are smoothly taken out, so that the pull rods 8 can be repeatedly used, and the loss of materials is reduced.

The PVC pipe has the advantages of low cost, high strength and the like. Therefore, when the concrete implementation is carried out, the protection barrel can be made to be a PVC pipe, and the protection barrel is high in structural strength due to the arrangement, so that the damage to the protection barrel during concrete pouring and vibrating is avoided, and the structure of the protection barrel is protected.

Of course, the protective cylinder may be made of high-strength materials such as hard rubber and PE, so long as the pull rod 8 is protected from being adhered by concrete, and the pull rod 8 is conveniently pulled out after the concrete is poured.

The embodiment further provides a method for formwork support, which is performed by all or part of the formwork support system for a concrete structure provided in the above embodiment, and the method specifically includes the following steps:

step one, arranging a plurality of cushion blocks 1 at intervals in the circumferential direction of a structural steel bar body 3, and welding connecting pieces 7 on the cushion blocks 1 and the structural steel bar body 3 together; the connecting piece 7 penetrates through a positioning hole 101 in the cushion block 1 to be fixed with the cushion block 1;

secondly, installing a plurality of framework steel bars 2 at intervals at preset positions of the structural steel bar body 3;

thirdly, installing a plurality of templates 4 in the circumferential direction of the structural steel bars, enabling the end surfaces of the framework steel bars 2 to be abutted against the inner walls of the corresponding templates 4 to form inner supports 5, and enabling one ends of the cushion blocks 1 to be attached to the inner walls of the corresponding templates 4;

and step four, arranging an outer support 6 for supporting the outer wall of the template 4 on the outer wall of the template 4.

Other technical features and specific implementation principles are the same as those of the above embodiments, and can bring about the same or similar technical effects, and are not described herein again, and specific reference may be made to the description of the above embodiments.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The formwork supporting system of the concrete structure is characterized by comprising a plurality of cushion blocks (1), framework steel bars (2) and formworks (4), wherein the formworks (4) are sequentially connected end to end and are arranged in the circumferential direction of a structural steel bar body (3) in an enclosing manner;

the structural reinforcement body (3) is provided with a first side (32) and a second side (33) which are opposite, a plurality of framework reinforcements (2) are sequentially arranged between the corresponding formworks (4) on the first side (32) and the second side (33) at intervals, and the end surfaces of the framework reinforcements (2) are respectively abutted against the inner walls of the corresponding formworks (4) to form inner supports (5) of the formworks (4); the formwork support system of the concrete structure further comprises an outer support (6) for supporting the outer wall of each formwork (4);

the first side (32) and the second side (33) are respectively provided with a plurality of cushion blocks (1) which are arranged at intervals along the extension direction of the corresponding template (4), and the number of the cushion blocks (1) on the first side (32) and the second side (33) is equal; one end of each cushion block (1) is attached to the inner wall of the corresponding template (4), a connecting piece (7) is arranged at the other end of each cushion block (1), a positioning hole (101) extending towards the direction far away from the corresponding template (4) is formed in the other end of each cushion block (1), each connecting piece (7) penetrates through the positioning hole (101) to be fixed with the corresponding cushion block (1), part of each connecting piece (7) is exposed out of the corresponding positioning hole (101), the part of each connecting piece (7) exposed out of the positioning hole (101) is welded with the structural steel bar body (3), and the part of each cushion block (1) exposed between the inner wall of the corresponding template (4) and the outer wall of the corresponding structural steel bar body (3) forms a protective layer.

2. The formwork support system for a concrete structure according to claim 1, wherein the spacers (1) on the first side (32) correspond to the spacers (1) on the second side (33) one by one, each framework steel bar (2) is connected between two corresponding spacers (1), and two ends of each framework steel bar (2) are respectively connected with the connecting pieces (7) on the corresponding spacers (1), so that each spacer (1) and the corresponding framework steel bar (2) form the inner support (5) together.

3. The formwork support system for a concrete structure according to claim 2, wherein each of the framework reinforcing bars (2) is connected to the corresponding connecting member (7) by welding.

4. Formwork support system for concrete structures according to claim 2, characterized in that it further comprises a sleeve (10) for connecting each of said framework reinforcement bars (2) with the corresponding connecting piece (7);

first internal threads are arranged on the inner wall of the sleeve (10), and first external threads which can be matched with the first internal threads are arranged on the outer walls of the framework steel bars (2) and the connecting pieces (7).

5. Formwork support system for concrete structures according to claim 1, characterized in that the connecting elements (7) are steel reinforcement.

6. The formwork support system of a concrete structure according to claim 1, wherein the spacer (1) is of concrete material.

7. The formwork support system for a concrete structure according to any one of claims 1 to 6, wherein the formwork support system for a concrete structure further comprises a plurality of tie rods (8), each formwork (4) is provided with a plurality of through holes (9) for the tie rods (8) to pass through, so that one end of each tie rod (8) sequentially passes through the through hole (9) of the formwork (4) corresponding to the first side (32), the gap of the structural reinforcement body (3) and the through hole (9) of the formwork (4) corresponding to the second side (33), and two ends of each tie rod (8) are respectively exposed outside the corresponding formwork (4) and detachably connected with the corresponding formwork (4) to form the outer support (6);

the part of each pull rod (8) between the templates (4) is also sleeved with a protective cylinder.

8. The formwork support system for a concrete structure, as claimed in claim 7, further comprising a fastening member (12), wherein the inner wall of the fastening member (12) is provided with a second internal thread, and the outer wall of each tie rod (8) is provided with a second external thread which can match the second internal thread;

when the fasteners (12) penetrate through the pull rods (8) and one ends of the fasteners (12) are attached to the outer wall of the template (4), the pull rods (8) are detachably connected with the corresponding template (4).

9. The formwork support system of a concrete structure, as claimed in claim 7, wherein the protective cylinder is a PVC pipe.

10. A method of formwork support using a formwork support system for a concrete structure as claimed in any one of claims 1 to 9, the method comprising:

a plurality of cushion blocks are arranged at intervals in the circumferential direction of the structural steel bar body, and connecting pieces on the cushion blocks are welded with the structural steel bar body; the connecting piece penetrates through a positioning hole in the cushion block to be fixed with the cushion block;

a plurality of framework steel bars are arranged at preset positions of the structural steel bar body at intervals;

installing a plurality of templates in the circumferential direction of the structural reinforcement body, enabling the end face of each framework reinforcement to be abutted against the corresponding inner wall of the template to form the inner support, and enabling one end of the cushion block to be attached to the corresponding inner wall of the template;

and the outer support used for supporting the outer wall of the template is arranged on the outer wall of the template.

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